- // MIR for `inner` before GVN
+ // MIR for `inner` after GVN
  
  fn inner(_1: u32) -> i64 {
      debug fields => _1;
      let mut _0: i64;
      let mut _2: i32;
      let mut _3: u32;
      let mut _4: u32;
      let mut _5: u32;
      let mut _6: u32;
      let mut _7: u32;
      let mut _8: u32;
      let mut _9: u32;
      let mut _10: u32;
      let mut _11: bool;
      let mut _12: u32;
      let mut _13: bool;
      scope 1 (inlined imm8) {
          debug x => _5;
          let mut _14: u32;
          scope 2 {
              debug out => _4;
          }
      }
      scope 3 (inlined core::num::<impl u32>::rotate_right) {
          debug self => _4;
          debug n => _6;
      }
  
      bb0: {
          StorageLive(_2);
          StorageLive(_3);
          StorageLive(_4);
          StorageLive(_5);
          _5 = _1;
          _4 = const 0_u32;
-         StorageLive(_14);
-         _14 = BitAnd(_5, const 255_u32);
-         _4 = BitOr(const 0_u32, move _14);
-         StorageDead(_14);
+         nop;
+         _14 = BitAnd(_1, const 255_u32);
+         _4 = _14;
+         nop;
          StorageDead(_5);
          StorageLive(_6);
          StorageLive(_7);
          StorageLive(_8);
          StorageLive(_9);
          _9 = _1;
-         _10 = const 8_i32 as u32 (IntToInt);
-         _11 = Lt(move _10, const 32_u32);
-         assert(move _11, "attempt to shift right by `{}`, which would overflow", const 8_i32) -> [success: bb1, unwind unreachable];
+         _10 = const 8_u32;
+         _11 = const true;
+         assert(const true, "attempt to shift right by `{}`, which would overflow", const 8_i32) -> [success: bb1, unwind unreachable];
      }
  
      bb1: {
-         _8 = Shr(move _9, const 8_i32);
+         _8 = Shr(_1, const 8_i32);
          StorageDead(_9);
          _7 = BitAnd(move _8, const 15_u32);
          StorageDead(_8);
-         _12 = const 1_i32 as u32 (IntToInt);
-         _13 = Lt(move _12, const 32_u32);
-         assert(move _13, "attempt to shift left by `{}`, which would overflow", const 1_i32) -> [success: bb2, unwind unreachable];
+         _12 = const 1_u32;
+         _13 = const true;
+         assert(const true, "attempt to shift left by `{}`, which would overflow", const 1_i32) -> [success: bb2, unwind unreachable];
      }
  
      bb2: {
          _6 = Shl(move _7, const 1_i32);
          StorageDead(_7);
          _3 = rotate_right::<u32>(move _4, move _6) -> [return: bb3, unwind unreachable];
      }
  
      bb3: {
          StorageDead(_6);
          StorageDead(_4);
          _2 = move _3 as i32 (IntToInt);
          StorageDead(_3);
          _0 = move _2 as i64 (IntToInt);
          StorageDead(_2);
          return;
      }
  }
  
